AutoCodes – Saturn – P1BFE Saturn

P1BFE Saturn Code - Hybrid/Electric Vehicle Battery 94 Circuit High Voltage

Quick Answer

The Hybrid/Electric Vehicle battery pack contains 288 cells. Common causes include Faulty Hybrid/Electric Vehicle Battery Pack, Faulty Hybrid/Electric Vehicle Battery Interface Control Module. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P1BFE Saturn indicates Hybrid/Electric Vehicle Battery 94 Circuit High Voltage.
Common causes: Common causes include Faulty Hybrid/Electric Vehicle Battery Pack, Faulty Hybrid/Electric Vehicle Battery Interface Control Module.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 890

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1BFE Saturn Description

The Hybrid/Electric Vehicle battery pack contains 288 cells. Groups of three cells are welded together in parallel. There are a total of 96 cell groups in the hybrid/EV battery pack assembly. These cell groups are electrically connected in-series. Each individual cell group is rated at 3.7 V, for a nominal system voltage of 355 V direct current. The battery cells are also grouped together into three sections. The first 90 cells/30 cell groups make up battery section one. This section is adjacent to the cowl and contains batteries 67 through to 96. Battery section two is located behind section one. It is made up of 72 cells/24 cell groups and contains batteries 43 through to 66. The transverse battery section is section number three, it is made up of the remaining 126 cells/42 cell groups and contains batteries 1 through to 42. The three battery sections are individually serviceable components.
The battery energy control module monitors the voltage of the 96 battery cell groups through the four hybrid/EV battery interface control modules. Voltage sense circuits are attached to each individual cell group, and these sense circuits terminate at a connector located on the top surface of the battery section. A serviceable auxiliary battery wiring harness joins this connector to a hybrid/EV battery interface control module, also located on the top surface of the battery section. The hybrid/EV battery interface control module encodes the voltage reading and transmits it to the battery energy control module through the battery control harness. There is one hybrid/EV battery interface control module located on battery sections one and two, and two hybrid/EV battery interface control modules associated with battery section three. The hybrid/EV battery interface control module, battery energy control module wiring harness, auxiliary battery wiring harness, and battery energy control module are all considered serviceable components.
The battery energy control module will determine when a fault condition is present. Diagnostics and system status are communicated from the battery energy control module to hybrid/EV powertrain control module 2 through serial data. The hybrid/EV powertrain control module 2 is the host controller for diagnostic trouble code information.

OBDII Code P1BFE Saturn - Hybrid/Electric Vehicle Battery 94 Circuit High Voltage - AutoCodes.com — P1BFE Saturn Code - Hybrid/Electric Vehicle Battery 94 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1BFE Saturn?

Faulty Hybrid/Electric Vehicle Battery Pack
Faulty Hybrid/Electric Vehicle Battery Interface Control Module

How to Fix the DTC P1BFE Saturn?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1BFE Saturn code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1BFE Saturn Code

What does the OBDII code P1BFE mean for my Saturn?

P1BFE indicates a high voltage issue in the hybrid/electric vehicle battery 94 circuit, signaling a potential problem with the battery management system.

What symptoms might I experience if my vehicle has the P1BFE code?

Common symptoms include warning lights on the dashboard, reduced engine power, difficulty starting the vehicle, and unusual battery performance.

What could cause the P1BFE code to trigger?

Possible causes include a faulty battery management system, damaged wiring or connectors, a malfunctioning battery, or issues with the hybrid control module.

How can I diagnose the issue related to the P1BFE code?

Start by checking the battery connections and wiring for any damage. Use an OBDII scanner to confirm the code, and inspect the hybrid battery and management system for faults.

Are there any specific repairs I should consider for the P1BFE code?

Repairs may involve replacing damaged wiring, fixing connectors, or replacing the hybrid battery or battery management system if they are found to be faulty.

Can I drive my Saturn with the P1BFE code?

It's generally not advisable to drive the vehicle as it may lead to further damage or reduce overall vehicle performance; itâ€™s best to have it diagnosed and repaired promptly.

Is it safe to work on the hybrid/electric battery myself if I see the P1BFE code?

Working on hybrid/electric vehicle batteries can be dangerous due to high voltage; it's recommended to seek professional assistance to ensure safety.

How much will it cost to repair the issues related to the P1BFE code?

Repair costs can vary widely depending on the specific issue and required parts, but expect costs to range from a few hundred to several thousand dollars.

Will clearing the P1BFE code fix the problem?

Clearing the code may temporarily turn off the warning lights, but it will not resolve the underlying issue. The code will likely return if the problem persists.